Comparison of five different fixation techniques of sagittal split ramus osteotomy using three-dimensional finite elements analysis

dc.creatorSato, FRL
dc.creatorAsprino, L
dc.creatorNoritomi, PY
dc.creatorda Silva, JVL
dc.creatorde Moraes, M
dc.date2012
dc.dateAUG
dc.date2014-07-30T14:00:11Z
dc.date2015-11-26T17:44:17Z
dc.date2014-07-30T14:00:11Z
dc.date2015-11-26T17:44:17Z
dc.date.accessioned2018-03-29T00:26:26Z
dc.date.available2018-03-29T00:26:26Z
dc.identifierInternational Journal Of Oral And Maxillofacial Surgery. Churchill Livingstone, v. 41, n. 8, n. 934, n. 941, 2012.
dc.identifier0901-5027
dc.identifierWOS:000307092200008
dc.identifier10.1016/j.ijom.2012.03.018
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/56247
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/56247
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1287831
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionThe aim of this study was to compare the mechanical stress over hemimandible substrate and hardware after sagittal split ramus osteotomy (SSRO) fixed with five different techniques using three-dimensional (3D) finite element analysis. A 3D finite element model of a hemimandible was created and a 5 mm advancement SSRO was simulated on a computer model. The model was fixed with five different techniques: 3 linear 60 degrees screw arrangement; 3 linear 90 degrees screw arrangement; 3 inverted L screw arrangement; 1 conventional miniplate; and I locking miniplate with four monocortical screws. Load was applied until 3 mm displacement was reached and the results were compared with previous mechanical and photoelastic tests, thus analysing the mechanical stresses developed, in the proximity of miniplates and screws and within the fixation system itself. The maximum principal stress values demonstrate a lower mechanical stress rate in bone and in the fixation system with the inverted L arrangement, followed by the linear 90 degrees and linear 60 degrees arrangements. The locking miniplate/screw system presented lower maximum principal stress and better stress distribution compared with the conventional system. Under the conditions tested, the reversed L arrangement provided the most favourable stress dissipation behaviour.
dc.description41
dc.description8
dc.description934
dc.description941
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCNPq [141231/2008-4]
dc.languageen
dc.publisherChurchill Livingstone
dc.publisherEdinburgh
dc.publisherEscócia
dc.relationInternational Journal Of Oral And Maxillofacial Surgery
dc.relationInt. J. Oral Maxillofac. Surg.
dc.rightsfechado
dc.sourceWeb of Science
dc.subjectfinite element analysis
dc.subjectsagittal split ramus osteotomy
dc.subjectrigid internal fixation
dc.subjectMandibular Advancement
dc.subjectBiomechanical Evaluation
dc.subjectMiniplate/screw Systems
dc.subjectInternal-fixation
dc.subjectScrew Size
dc.subjectStability
dc.subjectLocking
dc.subjectConfiguration
dc.subjectRigidity
dc.subjectStrength
dc.titleComparison of five different fixation techniques of sagittal split ramus osteotomy using three-dimensional finite elements analysis
dc.typeArtículos de revistas


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